单词plainsong
n.: 素歌（中世纪以来的教堂音乐）
网络: 圣歌；单声圣歌；单声颂歌
宗教圣咏，素歌（中世纪以来的教堂音乐）:
a type of church music for voices alone, used since the Middle Ages
A slowly changing plainsong pedal note was elaborated by upper voices, which did not follow the main melody note for note as before.
缓慢变化的圣歌踏板没有像以前一样只遵循主旋律，而是在高音部做强调。
of or relating to Pope Gregory I or to the plainsong chants of the Roman Catholic Church.
属于或关于罗马教皇一世或罗马天主教单声圣歌的。
Early Music Journal of the Plainsong and Mediaeval Music Society Renaissance Quarterly A Journal of Medieval Studies
早期音乐早期音乐素歌与中世纪音乐协会杂志文艺复兴季刊中世纪研究杂志